Alternatives for DOM API on Android?

We have an internal library that uses the org.w3c.dom DOM API to read and write XML. When attempting to use this library on Android I found that it no longer works. It appears that Android implements only a subset of the DOM API. I don't know the reasons for this, and I know that it's fixed in Android 2.2, but I still need to target older devices.

I know a number of alternative DOM libraries for "regular" Java, such as XOM and Dom4j. Can anyone recommend a DOM library that meets the following goals?

• It has to work on Android.
• It should be small (since people pay per MB).
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• Ideally, it should be similar to the org.w3c.dom API since I need to rewrite the existing code.

It's probably impossible to meet all three goals, but with two I would already be happy. Also, out of curiosity, does anyone know why the DOM API is not fully supported? I can understand the reasons for not implementing Java Sound etc., but XML seems quite essential to me.

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My general recommendation would be to stay well away from a DOM parser, because the performance is abysmal compared to using a direct parser. You would be much better off parsing with XmlPullParser or SAX.

I know, you already have code that uses DOM, and that is how you want to do it. But believe me, you should not be using this on a mobile device.